MvDo Function, MVT, Miva Merchant 9+, Engine v5.22+
<mvt:do file="g.Module_Library_DB" name="l.success" value="OptionList_Load_ProductVariant_Possible(product_id, attr_id, attmpat_id, attributes var, attribute_count, possible_options var)" />
product_id
attr_id
attmpat_id
attributes var
attribute_count
possible_options var